I had a thread in the outdoor area but it's rather dead in there. My brother can get me an Epson 710HD for under $500 as an open box at BB. How would this projector fair outdoors? Is 2800 Lumens enough?

I use a Optoma GT720 on my 220in outdoor with no problem. But it helps being a short throw projector, meaning more light hit the screen. The 720p resolution has been no problem. Movies and PS3 looks good on it.